{
  "$type": "site.standard.document",
  "bskyPostRef": {
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    "uri": "at://did:plc:ivbknywyskln22er3nkssdhl/app.bsky.feed.post/3mluamawybdo2"
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  "path": "/t/could-you-borrow-a-bit/24300#post_3",
  "publishedAt": "2026-05-15T00:57:46.000Z",
  "site": "https://internals.rust-lang.org",
  "textContent": "Without doing due diligence to search for past proposals, loosening Index[Mut] to return any type that implements Deref[Mut] rather than a hardcoded reference would cover this use case…but I suspect that's massively breaking in practice. Although maybe if you made it a new trait GeneralizedIndex, since people mostly only care about the subscript sugar…",
  "title": "Could you borrow a bit?"
}